4 research outputs found
Non-Abelian dynamics and heavy multiquarks, Steiner-tree confinement in hadron spectroscopy
A brief review is first presented of attempts to predict stable multiquark
states within current models of hadron spectroscopy. Then a model combining
flip-flop and connected Steiner trees is introduced and shown to lead to stable
multiquarks, in particular for some configurations involving several heavy
quarks and bearing exotic quantum numbers.Comment: 8 pages, 5 figures, Invited talk at the 21st European Conference on
Few-Body Problems in Physics, Salamanca, Spain, August 29th--September 3rd,
2010, to appear in the Proceedings, ed.~A.~Valcarce et al., to appear in
Few-Body Syste
Proof of stability of the hydrogen molecule
We sketch two rigorous proofs of the stability of the hydrogen molecule in
quantum mechanics. The first one is based on an extrapolation of variational
estimates of the groundstate energy of a positronium molecule to arbitrary mass
ratios. The second one is an extension of Heitler-London theory to nuclei of
finite mass.Comment: 7pages, RevTeX 3.0, ISN-93-50 (replace the first version which seems
unTeXable